王 鹏,蒋玉川
钢纤维掺量对新老混凝土收缩差异的影响
王 鹏,蒋玉川
摘 要:对钢纤维混凝土与老混凝土粘结收缩性能进行了系统的试验研究;从新老混凝土收缩差异的角度,分析了钢纤维掺量对新老混凝土粘结收缩性能的影响。通过试验及对比分析可知,新老混凝土的收缩差异受钢纤维掺量及粘结面的共同影响,钢纤维含量越高、距粘结面距离越近则新老混凝土的收缩差异越小。
Abstract: Abstract: The systemic experiment research on the adherence shrinkage performance between steel fiber reinforced concrete and old concrete are carried out. From the aspect of the shrinkage differences, the effects of content of steel fiber on adherence shrinkage performance between new and old concrete are analyzed. Through the experiment and comparing analysis, the differences of shrinkage between new and old concrete are affected both by content of steel fiber and bonding interface. The higher content of steel fiber, the closer distance with bonding interface, the difference of shrinkage between new and old concrete will become smaller.
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